Resize Images is a very easy to use utility. You can select multiple images to be resized at once, in addition you can also select the output format. It supports jpg, bmp, gif, tiff, emf and wmf. It has some great methods of resizing, these methods can strip out the parts from either sides of the pic so that picture proportion can be made equal to output size.
Resize Images is a very compact with size under 1 MB
It supports multiple formats which means it can convert image formats too.
Its so easy that even a newbie can resize images like a pro.
Proportion resizing makes it unique.